SpringMVC @RequestParam参数乱码的问题

在用SpringMVC的@RequestParam接受中文参数的时候，老是出现乱码的问题

修改web.xml

<filter>  
    <filter-name>encoding-filter</filter-name>  
        <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>  
        <init-param>  
            <param-name>encoding</param-name>  
            <param-value>UTF-8</param-value>  
        </init-param>  
    </filter>  
    <filter-mapping>  
        <filter-name>encoding-filter</filter-name>  
        <url-pattern>/*</url-pattern>  
 </filter-mapping>  

修改tomcat的server.xml，然后重启tomcat

<Connector port="8080" protocol="HTTP/1.1"
               connectionTimeout="20000"
               redirectPort="8443"  URIEncoding="utf-8"/>